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Jb4 BMW BMW 335 Performance Jb4 135 335 intakes
JB4 Performance Tuner
bmw 335i performance
N20/N26 JB4 Upgrades

N20 Replacement JB4 Board



Update or replace your JB4 control box with the latest options listed below. Note most 2014+ vehicles include electronic wastegates and will benefit from the EWG board. If upgrdaing a previous PWG system to EWG we suggest you modify the JB4 harness by cutting off the black ground & red power wires. Also note the purple MAF harness is no longer used for any N55 application so this can also be cut off the harness to clean it up. Note replacement boards do not include an enclosure and will ship with the latest production firmware. In the case of F series this is OBDII CANbus based firmware.

Jb4 N55 F30 BMW EWG upgrade board
Click To Enlarge

$175.00
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F Series OBDII CANbus Interface



Changes the connection point for the JB4 CANbus from POSI-TAP connectors to a fully plug and play OBDII cable. The OBDII cable is routed through a preexisting hole in the firewall for easy installation and includes a MOLEX connector and pigtail for easy installation. Requires special JB4 OBDII firmware that is posted to n54tech.


CANbus Interface JB4 N55 BMW

$35.00
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N20/N26 Stage2 FlexFuel Wires



For those of you wanting to take advantage of E85 fuel mixtures you'll need this additional fueling connector.

BMW Flexfuel

$25.00
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JB4 F Series EWG Add On Connector



For 2014+ N20/N26 motors that have an electronic wastegate. This add on patch allows your JB4 to directly control your electronic wastegate raising the boost ceiling for more heavily modified N20/N26 vehicles. Additional information and directions are posted here: http://www.n54tech.com/forums/showthread.php?t=23709

BMW Flexfuel

$35.00
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JB4 Billet Aluminum Enclosure



Our most protective case in the JB4 line-up. The sleek, stylish JB4 billet aluminum enclosure withstands drops, shocks and bumps while protecting electronics from dirt and water. CNC machined with a rubber sealing ring. Ideal for all weather F chassis applications. Made in the USA. Compatible with all BMS JB4 & Stage1 tuners.
$59.00
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JB4 plastic all weather enclosure



A plastic version of our fully weather proof JB4 enclosure. To install remove the existing harness amp cover and attach to the JB4 board using the included hardware. The board and harness head then fit inside the new water resistant enclosure.
$20.00
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High Temp JB4 Enclosure



This new enclosure is made from a temperature resistant resin and is a direct replacement for all existing JB4 enclosures. Other than being able to withstand higher temperatures before deforming there is no functional difference between this and the previous enclosure.
$10.00
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Replacement POSI-TAPS (2)



For tapping wires. Electrical connectors require no crimping and simply hand tighten.
Posi Tap connector
$5.00 Includes Free Shipping.
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BMW LED angel eyes
N20 N26 JB4 Tuner N55 Intake System N55 BMS Intake N20 Oil Catch Can BMW Wheel Spacers Protective Lug Socket
BMW Tuner BMS Single Intake BMS Single Intake BMW Jack Pad Adapter BMW Paddle Shift Retrofit
Wheel Locks GoPro Power Cord N20 Chargepipe BMW Floor Jack Pad 12V LED Flashlight N20 Stage 1 Tuner
BMS Single Intake BMW Performance Intercooler BMW Jack Pad Adapter BMW led flashlight BMW Performance Tuners
BMW Performance Tunes:
N54 JB4
N54 JB+ Quick Install
N20 N55 S55 Stage 1 Tuner
E Series N55 JB4
F Series JB+ Tuner
F Series N55 JB4
B48/B58 JB+ BETA
B46/B48/B58 JB4
N20 / N26 JB4
N63/N63tu Stage 1
M5/M6 S63tu Stage 1
s63tu M5/M6 JB4 BETA w/ BCM & OBDII
2015+ M3/M4 S55 JB4
2016+ M2 JB4
BMS Power Box (PBX)
JB Diesel (JBD)
 
BMW Performance Intakes:
BMS N54 Dual Cone Intake
BMS N55 BMW Performance Intake
F30 F32 N55 Performance Intake
BMS M3/M4 S55 Performance Intake
BMS M5/M6 s63tu Performance Intake
BMS B58 340 Performance Intake
BMS Silicon Single Turbo Filter
BMW Drop-In Air Filter Replacements
Filter Cleaning & Oil Kit
BMW Oil Catch Can
N54/N55 BMW 135i / 335i Intercooler
cp-e™ BMW 135i / 335i Intercooler
F Chassis BMW Intercooler
cp-e BMW 135i 335i Blow Off Valve Kit
BMS N54 N55 Chargepipe
Phoenix Racing N54 / N55 Chargepipe
F Chassis N55 Chargepipe
N20 N26 Chargepipe
M3/M4 S55 Chargepipes
 
BMW Interior:
Add OEM BMW Paddle Shifters
Short Shift Kit for BMW
Billet Shift Rod
F30 F31 F32 LED Glove Box Light
LED Courtesy / Footwell Lights
LED BMW Trunk Light Upgrade
Downshift Blocker
Short Throw Clutch Stop
GoPro Hero 3 and 4 12V Power Cord
LED 12v Flashlight
JB4 Logo Keychain
BMW Exterior:
AC Fabrication Aluminum Catback
3.5" N55 & B58 F Chassis Exhaust Tips
E Chassis 335 4" Slip-On N55/N54 Exhaust Tips
S55 M3 M4 F Chassis 3.75" Exhaust Tips
M3 M4 M5 M6 F Chassis Billet 3.75" Exhaust Tips
328 N51 N52 E Chassis Exhaust Tips
BMW Wheel Spacers and Spacer Bolts
Wheel locks for Spacers
Wheel Locks for BMW
Titanium BMW Lug Bolts
H8 LED Angel Eyes
White Halogen H8 Angel Eyes Upgrade
BMW Wheel Pin Tool
LED License Plate Lights
LED Courtesy Lights
BMW Tow Hook GoPro Camera Mount
BMW Tow Plate License Plate Mount
BMW Metal Jack Pad Adapter
Protective Wheel Saver Socket
Magnetic Spark Plug Socket
BMS Stickers
 
BMW Upgrades:
N54 JB4 Upgrades
N55 JB4 Upgrades
N20/N26 JB4 Upgrades
N63 JB4 Upgrades
JB4 Billet Aluminum Enclosure
JB4 Smart Phone Wireless Connect Kit (Rev. 3)
BMS DATA Cable & 3' Extension Cable
Bavarian Technic BMW Scanner
OBDII CAN Module for F Series
N54 N55 Spark Plugs
BMW Methanol Injection and Accessories
B58 340 Billet Methanol Spacer
Magnetic Spark Plug Socket
Stainless Steel Brake Line Upgrade
Sport Oil Cooler Valve
Rob Beck Replacement PCV Valve
BMS Short Throw Shifter
Billet Shift Rod
Replacement Downpipe Gaskets/Hardware
Fuel-IT N54 Secondary Fuel Line Adapter
E Series Low Fuel Pressure Upgrade Kits
Ethanol Content Tester Kit
N54 N55 S55 Oil Thermostat Lid
Short Throw Clutch Stop
Modified BMW Clutch Valve
BMW Oil Catch Can
Mini Cooper:
JB+ Mini Cooper Tune
MINI B38 / B46 / B48 JB4 BETA
Bavarian Technic BMW Scanner
R55 R56 R57 R58 R59 Wheel Spacers
Mini Cooper Wheel Spacers
Mini Cooper Floor Jack Pad
Countryman Paceman Floor Jack Pad
Mini Cooper Wheel Locks & Keys
Mini Cooper Wheel Spacer Locks
Mini Tow Hook GoPro Camera Mount
GoPro Hero 3 and 4 12V Power Cord
BMS Wheel Pin Tool
Magnetic Spark Plug Socket
Clutch Stop
Protective Wheel Socket
Rechargeable LED Flashlight
 
Mercedes Benz:
2015 W205 C200 C250 C300 Stage1
2015 W205 C400 Stage1
C250 JB+ Tuner
C250 Intake
2015+ C200 C300 Intake
Mercedes Floor Jack Pad
Mercedes Wheel Spacers
17mm Protective Wheel Socket
Air Filter Cleaning Kit
Rechargeable LED Flashlight
12V Power Cable for GoPro Hero 3 and 4
 
Parts for VW:
JB1 and JB4 Tuners for VW
JB1 Billet Aluminum Enclosure
JB1 Plastic All Weather Enclosure
Gen 3 Turbo Muffler Delete for VW & Audi
EA888 JB4 BETA Upgrade Kit
BMS EA888 Intake and Turbo Inlet
Wheel Spacers for VW Mk7
Billet Windshield Reservoir Washer Cap for VW
Tow Hook Camera Mount for GoPro
Clutch Stop for VW
VW Rechargable LED Flashlight
GoPro Hero 3 and 4 12V Power Cord
17mm Protective Wheel Socket
Lexus:
Lexus RC200t and IS200t Intake
Lexus Wheel Spacers by BMS
21mm Protective Wheel Socket
Rechargable LED Flashlight
GoPro Hero 3 and 4 12V Power Cord
 
Other:
Installation Guides
Burger Motorsports Logos
Terms & Conditions
BMW Chassis Codes
Mini Cooper Chassis Codes
California Emissions Info
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